21557772

素因数分解:

$2^2\times 3^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:228

約数の個数: 96

約数和(自身を含む): 59351040

約数和(自身を除く): 37793268

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 47, 54, 62, 93, 94, 108, 124, 137, 141, 186, 188, 274, 279, 282, 372, 411, 423, 548, 558, 564, 822, 837, 846, 1116, 1233, 1269, 1457, 1644, 1674, 1692, 2466, 2538, 2914, 3348, 3699, 4247, 4371, 4932, 5076, 5828, 6439, 7398, 8494, 8742, 12741, 12878, 13113, 14796, 16988, 17484, 19317, 25482, 25756, 26226, 38223, 38634, 39339, 50964, 52452, 57951, 76446, 77268, 78678, 114669, 115902, 152892, 157356, 173853, 199609, 229338, 231804, 347706, 399218, 458676, 598827, 695412, 798436, 1197654, 1796481, 2395308, 3592962, 5389443, 7185924, 10778886, 21557772]

約数ペア:

[(1, 21557772), (2, 10778886), (3, 7185924), (4, 5389443), (6, 3592962), (9, 2395308), (12, 1796481), (18, 1197654), (27, 798436), (31, 695412), (36, 598827), (47, 458676), (54, 399218), (62, 347706), (93, 231804), (94, 229338), (108, 199609), (124, 173853), (137, 157356), (141, 152892), (186, 115902), (188, 114669), (274, 78678), (279, 77268), (282, 76446), (372, 57951), (411, 52452), (423, 50964), (548, 39339), (558, 38634), (564, 38223), (822, 26226), (837, 25756), (846, 25482), (1116, 19317), (1233, 17484), (1269, 16988), (1457, 14796), (1644, 13113), (1674, 12878), (1692, 12741), (2466, 8742), (2538, 8494), (2914, 7398), (3348, 6439), (3699, 5828), (4247, 5076), (4371, 4932)]